PURPOSE: To cause the deliquescence of the casting mold itself by merely resting the casting mold in the atm. air or water without executing shake-out to be executed in order to obtain an as-cast product after casting by applying impart thereto from the outside in a casting operation.
CONSTITUTION: The molding material of the casting mold is constituted by agitating and mixing at last a binder and fine powder and powder and granular material of inorg. salts having a deliquescent property at required ratios. More preferably, silica sand is agitated and mixed with the molding material and the binder is the fine powder and powder and granular material of a phenolic resin and the inorg. salts having the deliquescent property are anhydrious calcium chloride.
ONOE HIROTAKE
NAGASHIMA HIDEO
NAGASHIMA YUTAKA
KOIZUMI KENJI
ONOE HIROTAKE
NAGASHIMA HIDEO
NAGASHIMA YUTAKA
KOIZUMI KENJI
| JPS58205641A | 1983-11-30 |